>How is Trump able to twist the laws to rule by edict? Because enough judges are willing to either approve his end-arounds or at least delay decisions.
No, it's because Congress delegated the authority.
Congress makes the laws, and the executive enforces that laws. That's all constitutional and good. Then the courts get to rule that the president was wrong and has to do something different. All presidents wrangle with how to go around court decisions to some extent, but Trump doesn't. He simply ignores them because he has realized that the Constitution doesn't give either Congress or the judiciary the power to enforce court decisions.
The entire US constitutional system is based on the assumption that the executive will obey the constitution with no way to force the president to act constitutionally. Trump has figured this out. The only constitutional mechanisms are impeachment and ending presidential terms via elections or term limits. The latter is not possible without broad bipartisan support, and we'll see how well the latter holds up. The US came uncomfortably close four years ago with Trump trying to also avoid that part of the constitution.
The ability of Congress to delegate its powers is also the basis of all regulatory law. Congress didn't pass a law requiring headlights on cars, that's a law created by non-elected regulators in the Executive branch.
You're arguing this from a constitutional perspective. It's interesting that Republicans and the right wing of the current Supreme Court want to interpret the constitution so strictly that regulatory power is essentially unconstitutional unless expressed spelled out in legislation. Of course, at the same time, they want the right to use regulatory power when it aligns with their ideology but at the same time declare it the scourge of anti-constitutionalists when it doesn't align.